| Game | Achievement | Points | From | To | |
|---|---|---|---|---|---|
|
|
Ghostbuster | 0.00 | 10/24/2026 00:00:00 | 11/01/2026 23:59:59 |
| Win in the Halloween survival event mode | |||||
|
|
Unfinished business | 0.00 | 10/24/2026 00:00:00 | 11/01/2026 23:59:59 |
| Lose in the Halloween survival event mode | |||||
|
|
Storyteller | 1.39 | 10/31/2026 00:00:00 | 10/31/2026 23:59:59 |
| Have 12 murderous dates with Calendar Man | |||||
|
|
Destination Vacation | 1.28 | 10/31/2026 00:00:00 | 10/31/2026 23:59:59 |
| Halo 2: View one of the seasonal signs on Zanzibar in classic multiplayer. | |||||
|
|
Cheerful Child | 1.02 | 10/31/2026 00:00:00 | 11/04/2026 23:59:59 |
| In the Safe House Nightmare job find the correct baby mask on the Normal difficulty. Unlocks the "Happy Baby" mask. | |||||
|
|
Gilliam's Sweet Little Baby | 1.04 | 10/31/2026 00:00:00 | 11/04/2026 23:59:59 |
| In the Safe House Nightmare job find the correct baby mask on the Hard difficulty. Unlocks the "Brazil Baby" mask. | |||||
|
|
Temper Tantrum | 1.06 | 10/31/2026 00:00:00 | 11/04/2026 23:59:59 |
| In the Safe House Nightmare job find the correct baby mask on the Very Hard difficulty. Unlocks the "Angry Baby" mask. | |||||
|
|
Water Works | 1.08 | 10/31/2026 00:00:00 | 11/04/2026 23:59:59 |
| In the Safe House Nightmare job find the correct baby mask on the OVERKILL difficulty. Unlocks the "Cry Baby" mask. | |||||
|
|
Sixth Nightmare | 1.08 | 10/31/2026 00:00:00 | 11/04/2026 23:59:59 |
| Complete the Safe House Nightmare job on the Death Wish difficulty or above. | |||||
|
|
Fifth Nightmare | 1.19 | 10/31/2026 00:00:00 | 11/04/2026 23:59:59 |
| Complete the Safe House Nightmare job on the Mayhem difficulty or above. | |||||
|
|
A Horrible Seventh Nightmare | 1.29 | 10/31/2026 00:00:00 | 11/04/2026 23:59:59 |
| Complete the Safe House Nightmare job on the Death Sentence difficulty with the One Down mechanic activated. | |||||
|
|
Back At It | 0.57 | 11/09/2026 00:00:00 | 11/09/2026 23:59:59 |
| Halo 2: Play a game of Halo 2 Anniversary on the 9th of any month. | |||||
|
|
Remember Reach | 0.56 | 11/14/2026 00:00:00 | 11/14/2026 23:59:59 |
| Halo: Reach: Play a game of Halo: Reach on the 14th of any month. | |||||
|
|
DISAPPOINTING PRESENTS | 0.88 | 12/19/2026 00:00:00 | 01/08/2027 23:59:59 |
| Defeated 1 Xmas Ultrayeti | |||||
|
|
UNDERCOOKED TURKEY | 1.03 | 12/19/2026 00:00:00 | 01/08/2027 23:59:59 |
| Defeated 2 Xmas Ultrayetis | |||||
|
|
NO-ONE LIKES XMAS PUDDING | 1.11 | 12/19/2026 00:00:00 | 01/08/2027 23:59:59 |
| Defeated 3 Xmas Ultrayetis | |||||
|
|
SPROUT FLATULENCE | 1.19 | 12/19/2026 00:00:00 | 01/08/2027 23:59:59 |
| Defeated 4 Xmas Ultrayetis | |||||
|
|
DRUNKEN FAMILY ARGUMENT | 0.75 | 12/19/2026 00:00:00 | 01/08/2027 23:59:59 |
| Hurrah! Christmas is finally over! | |||||
|
|
New Year's Resolution | 1.84 | 01/01/2027 00:00:00 | 01/01/2027 23:59:59 |
| Run Time Spy Extreme on January 1. | |||||
|
|
Endless Day | 2.18 | 01/21/2027 00:00:00 | 01/25/2027 23:59:59 |
| …the galaxy as the Archivist, Emlek Tarosh, fulfills its duty. | |||||
|
|
Endless Day | 1.31 | 01/21/2027 00:00:00 | 01/25/2027 23:59:59 |
| ...in the ruins all across Auriga, and even throughout... | |||||
|
|
Endless Day | 1.85 | 01/21/2027 00:00:00 | 01/25/2027 23:59:59 |
| You have unlocked the Endless archivist; the being that watches the watchers… | |||||
|
|
Infectious | 1.62 | 02/18/2027 00:00:00 | 02/18/2027 23:59:59 |
| Win a game on Plague Inc.'s original release date | |||||
|
|
Return of the druids | 1.98 | 05/01/2027 00:00:00 | 05/01/2027 23:59:59 |
| Start Spellcaster University on the day of the Beltane festival. | |||||